Definition of suppurate in US English:

suppurate

verb

[no object]
  • Undergo the formation of pus; fester.

    • ‘His bow lost its spring but his wound still suppurated.’
    • ‘Over the centuries, the wounds which surgeons were tending, either as a result of injury or inflicted by themselves on their patients, would swell, redden, and suppurate with the discharge of pus.’
    • ‘Strangely enough, the wound in my remaining arm, which still suppurated, was seized with gangrene.’
    • ‘They're like thumb holes in his ribcage, suppurating and glistening with pus.’
    fester, form pus, swell up, gather, discharge, rot, run, weep, ooze, come to a head
    View synonyms

Origin

Late Middle English (in the sense ‘cause to form pus’): based on Latin sub- ‘below’ + pus, pur- ‘pus’.

Pronunciation

suppurate

/ˈsəpyəˌrāt//ˈsəpjəˌreɪt/